The intel-aes package

AES encryption with optional hardware acceleration. Plus,
statistically sound, splittable random number generation based on AES.
This package is nothing more than a wrapper around the Intel-provided
AESNI sample library which also includes a portable software
implementation of AES by Brian Gladman. It contains C,
assembly, and Haskell sources. And it includes prebuilt dynamic
libraries to make the build process less fragile.
(Rebuilding requires the yasm assembler.) But prebuilt shared
libraries are not included for all platforms yet. (Volunteers
needed!)
Finally, note that this package is currently triggering some haddock
problems. A manually built copy of the documentation can be found
at:
http://people.csail.mit.edu/newton/intel-aes-doc/